8623640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2729}}^1$

素因数の和:2819

約数の個数: 32

約数和(自身を含む): 19656000

約数和(自身を除く): 11032360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2729, 3160, 5458, 10916, 13645, 21832, 27290, 54580, 109160, 215591, 431182, 862364, 1077955, 1724728, 2155910, 4311820, 8623640]

約数ペア:

[(1, 8623640), (2, 4311820), (4, 2155910), (5, 1724728), (8, 1077955), (10, 862364), (20, 431182), (40, 215591), (79, 109160), (158, 54580), (316, 27290), (395, 21832), (632, 13645), (790, 10916), (1580, 5458), (2729, 3160)]